New York: Brad Pitt suffered a knee injury while carrying daughter Vivienne and is now walking with the help of a cane. Walking the red carpet at the 23rd Annual Palm Springs Film Festival awards gala the 48-year-old star said it was because he tripped while carrying his daughter Vivienne.

“I was carrying my daughter (Vivienne) down the hill and I slipped,” a website quoted Pitt as saying.

His partner Angelina Jolie added, Vivienne, three-and-half years old, wasn't hurt in the tumble. “Vivie's okay. She was absolutely fine.”

Although Pitt wouldn't need surgery, he may need the cane for a while. However, Jolie seems quite fine with it.

“I like the cane,' said Jolie, adding that the injury hasn't slowed him down much at all. 'He's not that kind of guy. He does everything still.”